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Vulnerabilities

Vulnerability · CVE-2026-40201

@diplodoc/search-extension 1.0.0 through 3.x before 3.0.3 allows stored XSS via the title in a .md file.

Published May 1, 2026 · catalog updated Jun 17, 2026 · @diplodoc/search-extension 1.0.0 through 3.x

Check if you run it

No confirmed exploitation is on record for CVE-2026-40201. EPSS is 0.30%. Act only if a listed version of @diplodoc/search-extension 1.0.0 through 3.x is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (@diplodoc/search-extension 1.0.0 through 3.x).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.30%
Remediation
Not established
Affected products
See sources for product scope

@diplodoc/search-extension 1.0.0 through 3.x before 3.0.3 allows stored XSS via the title in a .md file.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-40201

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-40201. EPSS is 0.30%. Act only if a listed version of @diplodoc/search-extension 1.0.0 through 3.x is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 1, 2026 · NIST NVD

    Detected

    @diplodoc/search-extension 1.0.0 through 3.x before 3.0.3 allows stored XSS via the title in a .md file.

  2. Jun 17, 2026 · NIST NVD

    Updated

    @diplodoc/search-extension 1.0.0 through 3.x before 3.0.3 allows stored XSS via the title in a .md file.

Sources

  • CVE.orgVulnerability recordCVE-2026-40201

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-40201

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-40201

    @diplodoc/search-extension 1.0.0 through 3.x before 3.0.3 allows stored XSS via the title in a .md file.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.